Dual Nucleophilic Catalysis with DABCO for the N-Methylation of Indoles
作者:Wen-Chung Shieh、Steven Dell、Andrew Bach、Oljan Repič、Thomas J. Blacklock
DOI:10.1021/jo0266644
日期:2003.3.1
DABCO is an extremely active catalyst for the methylation of indoles in conjunction with dimethyl carbonate (DMC). This green chemistry is highly effective and produces N-methylindoles in nearly quantitative yields. The reaction sequence consists of competing alkylation and acylation pathways and involves 1,4-diazabicyclo [2.2.2] octane (DABCO) dually as a nucleophilic catalyst, ultimately resulting in a single product: the N-methylated indole.
US5185443A
申请人:——
公开号:US5185443A
公开(公告)日:1993-02-09
Carbamazepine derivatives with P2X4 receptor-blocking activity
作者:Maoqun Tian、Aliaa Abdelrahman、Stephanie Weinhausen、Sonja Hinz、Stefanie Weyer、Stefan Dosa、Ali El-Tayeb、Christa E. Müller
DOI:10.1016/j.bmc.2013.12.035
日期:2014.2
diseases. In the present study, a series of 47 carbamazepine derivatives including 32 novel compounds were designed, synthesized, and evaluated as P2X4 receptor antagonists. Their potency to inhibit ATP-induced calcium influx in 1321N1 astrocytoma cells stably transfected with the human P2X4 receptor was determined. Additionally, species selectivity (human, rat, mouse) and receptor subtype selectivity (P2X4